Fix zombie agent detection and surface stopped agent cleanup (#380)

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

crates/sprout-relay/src/api/messages.rs

@@ -129,12 +129,9 @@ pub fn validate_imeta_tags(tags: &[Vec<String>], media_base_url: &str) -> Result
                         return Err("imeta duration must be a valid float".into());
                     }
                 }
-                "bitrate" => {
+                "bitrate" if value.parse::<u64>().map_or(true, |b| b == 0) => {
-                    // NIP-71 standard field: bits/sec as integer, positive
-                    if value.parse::<u64>().map_or(true, |b| b == 0) {
                     return Err("imeta bitrate must be a positive integer".into());
                 }
-                }
                 "image" => {
                     // NIP-71 poster frame — must be a local media URL with an image extension.
                     // Poster frames are independent blobs, NOT thumbnails.

crates/sprout-relay/src/handlers/ingest.rs

@@ -703,16 +703,12 @@ fn validate_diff_event(event: &Event) -> Result<(), String> {
                     return Err("parent-commit SHA must be at least 7 hex characters".to_string());
                 }
             }
-            "branch" => {
+            "branch" if (parts.len() < 3 || parts[1].is_empty() || parts[2].is_empty()) => {
-                if parts.len() < 3 || parts[1].is_empty() || parts[2].is_empty() {
                 return Err("branch tag requires both source and target".to_string());
             }
-            }
+            "pr" if parts[1].parse::<u32>().map(|n| n == 0).unwrap_or(true) => {
-            "pr" => {
-                if parts[1].parse::<u32>().map(|n| n == 0).unwrap_or(true) {
                 return Err("pr number must be a positive integer".to_string());
             }
-            }
             _ => {}
         }
     }

desktop/src-tauri/src/managed_agents/runtime.rs

@@ -321,7 +321,7 @@ pub fn sync_managed_agent_processes(
             continue;
         };
 
-        if process_is_running(pid) {
+        if process_is_running(pid) && process_belongs_to_us(pid) {
             continue;
         }
 
@@ -601,7 +601,7 @@ pub fn start_managed_agent_process(
     }
 
     if let Some(pid) = record.runtime_pid {
-        if process_is_running(pid) {
+        if process_is_running(pid) && process_belongs_to_us(pid) {
             record.updated_at = now_iso();
             record.last_error = None;
             return Ok(());

desktop/src/features/agents/ui/ManagedAgentsSection.tsx

@@ -186,6 +186,24 @@ export function ManagedAgentsSection({
         </div>
       ) : null}
 
+      {!isLoading && stoppedCount > 0 ? (
+        <div className="flex items-center justify-between rounded-xl border border-border/60 bg-muted/30 px-4 py-2.5">
+          <p className="text-sm text-muted-foreground">
+            {stoppedCount} stopped {stoppedCount === 1 ? "agent" : "agents"}
+          </p>
+          <Button
+            className="text-destructive"
+            disabled={isActionPending}
+            onClick={onBulkRemoveStopped}
+            size="sm"
+            variant="ghost"
+          >
+            <Trash2 className="mr-1.5 h-3.5 w-3.5" />
+            Remove stopped
+          </Button>
+        </div>
+      ) : null}
+
       {error ? (
         <p className="rounded-2xl border border-destructive/30 bg-destructive/10 px-4 py-3 text-sm text-destructive">
           {error.message}

rust-toolchain.toml

@@ -1,3 +1,3 @@
 [toolchain]
-channel = "stable"
+channel = "1.95.0"
 profile = "default"